The USAGI Project (UniverSAl playGround for
Ipv6 Project) aims to provide a better IPv6
environment for Linux in conjunction with the
WIDE, KAME, and TAHI projects. It includes
Linux kernel extensions, IPv6 related libraries,
and IPv6 applications.

wyoGuide is a tutorial, a collection of guidelines
for building cross-platform applications with a
well-designed, consistent look and feel. It gives
ideas and advice on how an application and its GUI
could and should be written. Development with
these guidelines gives the GUI of an application a
standard set of base functionality. wyoGuide also
provides sample code for each guideline written in
C++ using the wxWidgets (formerly wxWindows)
framework. For a seasoned developer it shouldn't
be difficult to adapt these guidelines to other
languages or frameworks.

nedmalloc is an extremely fast portable thread caching malloc implementation written in C for multiple threads without lock contention based on dlmalloc. It is optimized for x86 and x64, compatible with C++, and can patch itself into existing binaries on Windows.

Sglib is a generic library for C that was inspired
by the Standard Template Library from C++. It
consists of a single header file and no binary
code. It defines useful macros for sorting arrays
and manipulating lists, sorted lists, double
linked lists, hashed containers, and red-black
trees. Macros are parametrized by the type of the
data structure. The library does not enforce its
own data representation, but acts on user-defined
types. It does not enforce any particular memory
management system.

Daikon is an implementation of dynamic detection
of likely invariants. An invariant is a property
(such as "x=2*y+5" or "this.next.prev = this" or "myarray is sorted by &lt;")
that holds at a certain point or points in a
program. Invariants are often seen in assert
statements, documentation, and formal
specifications. Invariants can be useful in
program understanding and a host of other
applications. Daikon runs a program, observes the
values that the program computes, and then reports
properties that were true over the observed
executions. It can detect properties in Java, C,
C++, Perl, and IOA programs, in spreadsheet files,
and in other data sources.

LoW is a rewrite of the first-person role-playing
game Ultima Underworld II: Labyrinth of Worlds
that came out in the early 1990s. One of the most
celebrated game of its genre, this rewrite attempts
to recapture the minutiae and spirit of the original.

libXbgi is a compatibility library that aids in porting old programs written for Turbo/Borland C to X11, on Linux and other Unix-like systems. It also provides extensions for RGB colors and mouse support.